<?php

namespace app\common\service;


use app\common\controller\Smscm;
use app\common\helper\FormatHelper;
use think\Db;
use think\Exception;

/**
 * 房间单据服务
 *
 * Class RoomCheckOutService
 * @package app\common\service
 */
class ZipFileService {

    public static $datasec = array();
    public static $ctrl_dir = array();
    public static $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";
    public static $old_offset = 0;

    public static function unix2_dostime($unixtime = 0)
    {
        $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
        if ($timearray ['year'] < 1980) {
            $timearray ['year'] = 1980;
            $timearray ['mon'] = 1;
            $timearray ['mday'] = 1;
            $timearray ['hours'] = 0;
            $timearray ['minutes'] = 0;
            $timearray ['seconds'] = 0;
        }
        return (($timearray ['year'] - 1980) << 25) |
            ($timearray ['mon'] << 21) |
            ($timearray ['mday'] << 16) |
            ($timearray ['hours'] << 11) |
            ($timearray ['minutes'] << 5) |
            ($timearray ['seconds'] >> 1);
    }

    public static function add_file($data, $name, $time = 0)
    {
        $name = str_replace('\\', '/', $name);

        $dtime = dechex(self::unix2_dostime($time));
        $hexdtime = '\x' . $dtime [6] . $dtime [7] . '\x' .
            $dtime [4] . $dtime [5] . '\x' . $dtime [2] .
            $dtime [3] . '\x' . $dtime [0] . $dtime [1];
        eval('$hexdtime = "' . $hexdtime . '";');

        $fr = "\x50\x4b\x03\x04";
        $fr .= "\x14\x00";
        $fr .= "\x00\x00";
        $fr .= "\x08\x00";
        $fr .= $hexdtime;

        $unc_len = strlen($data);
        $crc = crc32($data);
        $zdata = gzcompress($data);
        $zdata = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
        $c_len = strlen($zdata);
        $fr .= pack('V', $crc);
        $fr .= pack('V', $c_len);
        $fr .= pack('V', $unc_len);
        $fr .= pack('v', strlen($name));
        $fr .= pack('v', 0);
        $fr .= $name;

        $fr .= $zdata;
        $fr .= pack('V', $crc);
        $fr .= pack('V', $c_len);
        $fr .= pack('V', $unc_len);

       self::$datasec [] = $fr;

        $cdrec = "\x50\x4b\x01\x02";
        $cdrec .= "\x00\x00";
        $cdrec .= "\x14\x00";
        $cdrec .= "\x00\x00";
        $cdrec .= "\x08\x00";
        $cdrec .= $hexdtime;
        $cdrec .= pack('V', $crc);
        $cdrec .= pack('V', $c_len);
        $cdrec .= pack('V', $unc_len);
        $cdrec .= pack('v', strlen($name));
        $cdrec .= pack('v', 0);
        $cdrec .= pack('v', 0);
        $cdrec .= pack('v', 0);
        $cdrec .= pack('v', 0);
        $cdrec .= pack('V', 32);

        $cdrec .= pack('V', self::$old_offset);
        self::$old_offset += strlen($fr);

        $cdrec .= $name;

        self::$ctrl_dir[] = $cdrec;
    }

   public static function add_path($path, $l = 0)
    {
        $d = @opendir($path);
        $l = $l > 0 ? $l : strlen($path) + 1;
        while ($v = @readdir($d)) {
            if ($v == '.' || $v == '..') {
                continue;
            }
            $v = $path . '/' . $v;
            if (is_dir($v)) {
                self::add_path($v, $l);
            } else {
                self::add_file(file_get_contents($v), substr($v, $l));
            }
        }
    }

    public static function file()
    {
        $data = implode('', self::$datasec);
        $ctrldir = implode('',self::$ctrl_dir);
        return $data . $ctrldir . self::$eof_ctrl_dir .
            pack('v', sizeof(self::$ctrl_dir)) .
            pack('v', sizeof(self::$ctrl_dir)) .
            pack('V', strlen($ctrldir)) .
            pack('V', strlen($data)) . "\x00\x00";
    }

   public static function add_files($files)
    {
        foreach ($files as $file) {
            if (is_file($file)) {
                $data = implode("", file($file));
                self::add_file($data, $file);
            }
        }
    }

    public static function output($file)
    {
        $fp = fopen($file, "w");
        fwrite($fp, self::file());
        fclose($fp);
    }


}
